Pneumatic-stacker hood.



H. 0. 5:]. l. WALLACE.

PNEUMATIC STACKER HOOD.

APPLICATION FILED JAN-10.19i6.

Patented J an. 29, 1918;

A TTORNEY Patented Jan. 29, 1918.

2 SHEETS-*SHEET 2.

C a/ W/ .0 cw #1 we aw J A 770mm UNKTEEED STATES PATENT cur en- HALBER'Ic. waLLAcnAnn JESSE I. WALLACE, or Kansas CITY, vrrssouar.

rivnp yrArle-srncxna upon.

Specification of Letters I atent.

Patented Jan. 29, 1918.

Application filed January 10, 1916. Serial No. 71,237.

ToaZZ whom it may concern:

Be it known that we, HAL'nnRr C. WALLACE and Jnssr. I. lVaLLAon,citizens of the United States, residing at Kansas City, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in Pneumatic Stacker Hoods; and we do declare the followinclear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, and to theletters and figures of reference marked thereon, which form a part ofthis specification.

Our invention relates to a hood for pneumatic or wind stackers forthreshing machines, clover hullers, silo fillers, etc., and moreparticularly to a device of this character which may be adjustablyattached to the stacker spout and is adapted for separating dirt, rustor foreign matter from the straw and chaff carried along with it fromthe machine.

lVhile the general principles underlying the use of a device of thischaracter are the same whether the device is used on a thresher, cloverhuller, silo filler, or other machine, certain conditions, such as thedryness of the straw, the relative proportions of clean straw tochaffdust and refuse, weather conditions, and the ultimate use to which thestraw is to be put, make flexibility of the hood and the direction andseparation of its discharge desirable, if not essential, and it is toprovide a hood of this character of such flexibility of direction andseparation that we have devised the present improvement.

It is also an object of the invention to provide improved details ofstructure in the stacker hood, whereby the objects stated and otherobjects hereinafter disclosed, may be obtained, the preferredconstruction being illustrated in the accompanying drawings, whereinFigure I is a perspective view of a stacker hood containing ourimprovements, and illustrating its combination with a stacker spout.

Fig. II is a central, longitudinal section of the same, illustrating theflexibility of direction of discharge in dotted lines.

Fig. III is a detail perspective view of a part of the hood, a portionof the separator plate being broken away for better illustration.

or to be a full,

Fig. IV is across section on. the line IV-IV', Fig. II.

Fig. V is a perspective view of the device, illustrating the mounting ofa dust or dust and chaff delivering conduit thereon.

Fig. VI is a detail perspective view of a solid form of deflector platewhich may be used in place of the perforated plate illustrated in theother figures.

Referring more in detail to the drawings:

1 designates a stacker spout which may he of any ordinary constructionand suitably connected with a threshing or other machine (not shown),with which the hood is adapted for use.

As the stacker spouts of different types and sizes vary in diametenwehave, in order to standardize the hood connection, provided the spoutand hood with swivel members, the first comprising a collar 3 of adiameter to fit the largest diameter of stacker spout, and which isattached directly to the spout at the top by a rivet or bolt 4 andindirectly at intervals throughout its cir- By fixing the collar at thetop of the spout and leaving the spacing at the bottom, we avoid drawlngin air at the top of the joint tointerfere with the proper discharge ofthe straw under the wind pressure, thespacing at the bottom beingimmaterial for the reason that the greater flow is at the top of thespout.

The collar 3 has a swivel head 6 at its outer edge adapted for carryingthe bead 7 of a. collar 8 forming the connecting member of the stackerhood, and side members 12, which are connected at their rear edges by anarch 13, preferably of strap metal, which is securely riveted to theside of the hood run over said pulley is a rope 17, one end of which isattached to a post 18 on the stacker spout, and the other run back to apoint convenient of access to the operator of the thresher, or othermachine, so that when the backturned end of the rope is drawn, the ropewill act to lift the hood and pivot the same on the rod 11 in order toprovide for variation of discharge and delivery of mate rial to variousportions of a stack. Ordinarily the weight of the hood is sufficient toreturn same to initial position,rbut to insure such return, particularlywhen the hood is inverted or at a decided lateral incline, we providesprings 19, the rear ends of which are anchored to straps 20 on the neck9, and the forward ends of which comprise shanks 21 that are projectedthrough apertures 22 in straps 23 that are attached to the hood, theends of the shanks being provided with nuts 2a which may be adjusted onthe shanks and bear against the straps 23 to hold the springs atadjusted tension, so that they will tend to urge the hood to initialposition and will return the same when the adjusting rope is released.Lateral adjustment of the hood may also be effected by ropes 25 that runover pulleys 26 on brackets 27 which are mounted on the sides of theneck 9 and are secured to post 18, so that when either rope is drawn itwill pull the hood in that direction.

In order to avoid scattering the straw as it is delivered from the hoodand also to separate the straw from chaff, dust and refuse that might bemingled therewith, we provide the hood with a grate, one form of whichcomprises a series of fingers 28, which are anchored to the hood and atthe upper rear edge thereof and extend in a curved path across the lineof flow through the hood, so that straw coming in contact therewith isdeflected downwardly onto a stack, the spacing of the fingers being suchthat they will deflect the straw but will allow chaff, dust or refuse topass therebetween and be carried away from the stack by the Windpressure.

The preferred means for anchoring the fingers comprises a plate 30 whichis secured to the sides of the hood and is provided with a flange 31having apertures 32, through which the fingers may project, and With arear shelf 33 which overlies the body of the plate and is spacedtherefrom sufficiently to allow the ends of the fingers to passtherebetween. The body of the plate and shelf 33 are provided withregistering apertures for receiving bolts 35, and the fingers arepreferably doubled so that their base ends may form an anchorage on thebolts, and so that when the fingers are seated in the anchoring platethe bolt may be projected through the plate and base ends of the fingersand tightened to hold the rings in position.

The fingers may be used alone when it is merely desired to separate thestraw from chaff, dust and refuse, and it is not desired to save thechaff, or when the straw is moist. In order, however, to save the chaff,and separate the same from the dust and other particles, having novalue, we provide a supplemental separator comprising a plate 37 whichis preferably mounted removably within the hood in order that it may beremoved when the fingers are to be used alone, or may be replaced by aplate of a different character. The preferred mounting of the plate 37is that wherein the plate is provided along its rear edge with apertures38 which are adapted for receiving posts 39 on a lip 1:0 that extendsforwardly from the flange 31 at the front of the finger plate 30, sothat when the rear edge on the separator plate 37 is resting on the lip,with the posts projected through the apertures, the said plate isanchored firmly at the rear. The plate 37 is also provided with upturnedside flanges 42 having slots 43 therein adapted to overlie apertures 14in the hood sides, so that bolts 45 may be projected through theapertures and slots to hold the edges of the plate to the sides of thehood. The front ends of the side members 12 are connected by a deflectorplate 46 for directing the fine material that is passed through thegrate outwardly from the hood, at substantially a right angle to thedeflected travel of the chaff, the said deflector being of less depththan the sides 12 to form a slot t6 therebe neath through which theforward end'of the plate 37 may be projected. The forward endof theplate 37 is provided with a bead i7, and fixed in said head is a rod 48,the ends of which project laterally beyond the hood when the parts areassembled and are adapted for taking into the apertures 49 in the springstraps 50 that are secured to the sides of the hood, so that when theseparator plate is installed within the hood, the spring straps may bespread outwardly to allow the studs to seat in the anchoring apertures,and whereby the frontend of the plate is firmly located within the hood.

If it is not desired to separate clean straw from the chaff, dust, etc.,but it is merely desired to collect all of the material from the stackerspout in a stack, the perforated plate may be replaced with a solidplate (Fig. VI) which acts merely as a de flee-tor, so that straw,chaff, etc., is thrown together onto the stack, the solid plate being ofthe same construction as the perforated one except for the perforations,and adapted for mounting in the hood in the manner described.

When the solid plate is used there is no purpose served by the fingers,so the fingers, being removable, may be taken out of the hood and thesolid plate used alone, theremoval of the fingers being effected byremoving the bolts 35 to free the base ends of the fingers, tipping thefingers toproject said base ends over the front edge of the lip 33 andthen withdrawing the fingers from the flange 31.

Then it is desired to conduct the dust and refuse away from the hood,particularly when the threshing is being done under cover, as in a barn,and thereby save discomfort to the workman, a conduit may be attached tothe discharge end of the hood and run through a suitable opening in thebuilding or to any desired point. This conduit 51 is preferablyconstructed of canvas and has flaps 52 at its base end which may beattached to the sides and ends of the hood by bolts 53, or the like, sothat all of the material passing from the end of the hood is delivereddirectly into the conduit and taken away to be deposited in a stack atwhatever distance from the hood may be desired.

In using the device, assuming the parts to be constructed and assembledas described, and further assuming that it is merely desired to separatethe straw from the chaff, dust, dirt and refuse, so that the straw maybe used alone for packing or other purposes, the fingers alone arelocated within the hood, so that when the straw is delivered from thespoilt it will be deflected onto a stack while chaff and other matter isblown through the fingers and carried away to a distant point.

Should it be desired to use the straw for feed, the chaff should besaved with the straw, and in order to effect the separation of the strawfrom the dust and other small matter of no food value, the fingers andthe perforated plate are both located within the hood.

Vhen the machine is in operation, with the hood so arranged, straw iscaught by the fingers and deflected onto the stack and the chaff, dirtand dust passed through the fingers to contact the perforated plate, anddust and dirt passing through the apertures in the plate, but the chaffbeing caught thereby and deflected down onto the stack closely adjacentthe point of delivery of the straw, so that the straw and chaff are bothsaved, while the dust and dirt is carried awav.

Should the user, however, not be particular as to the separation, he mayreplace both the fingers and the perforated plate with the solid plate,so that all the material delivered from the stacker spout is carried tothe stack and saved, and should the material delivered from the stackerconsist of fine, chopped straw, clover, or the like, the perforatedplate may be used alone.

\Vhen threshing in a barn, in order to save the workmen discomfort fromthe dust that is carried along with the straw, the fingers together, anda conduit attached to the delivery end of the hood for, catching andcarrying the dust and dirt, the ends of the conduit affordingflexibility that will permit the same to be ca-rriedto an opening in thebuilding through which the dust and dirt may be carried to an outsidestack.

Irrespective of its detail arrangement,the hood may be adjusted as toposition by means of the ropes and the angle of deflection varied todistribute the material over a stack either longitudinally ortransversely.

Having thus described our invention, what We claim as new therein, anddesire to secure by Letters-Patent, is

1. In a stacker hood, a skeleton frame comprising side members and adeflector plate connecting the side members at the front ends thereof,an interior deflector plate having outturned edge flanges lying alongthe side members and provided with slots and bolts extending throughsaid slots to attach said interior plate to the side members, and aflange member at the rear of the frame provided with upstanding studs;the said connecting deflector plate being of less depth than the sidemembers, whereby the end of the interior deflector plate may lietherebeneath without projecting from the lower edge of the frame, andthe said interior plate having apertures for receiving said studs toanchor the plate to the flange member.

2. The combination with a stacker spout, of a hood comprising anattaching collar movable over the spout and bolted to the top thereofand straps connecting said collar and spout at intervals about the same,whereby the collar may be applied to spouts of different diameter andany surplus of space located at the bottom of the spout; the said collarhaving an outstanding curved bead extending circumferentiallythereabout, a neck comprising a collar overlying the first named collar,and having a bead inclosing the bead thereon to provide forcircumferential movement of the parts and an anchorage againstlongitudinal movement of the hood.

3. A stacker hood comprising side mem bers, a bar located at the upper,rear portion of the hood and provided with upstanding studs, a curvedplate having support at the rear on said lip and having aperturesthrough which the studs are projected, stud members on the front end ofsaid plate proj ecting laterally beyond the sides of the hood, andflexible members on said sides for engaging said studs to anchor theplate.

4. A stacker hood comprising side members, and having a deflector plateat its forward end spaced from the lower edges of said side members, acurved plate located between the side members with its forward andperforated plate may be used singly or end projected beneath saiddeflector plate and having a bead at its for ard end, a rod carried insaid bead and having its ends pro jected beyond the sides of the plate,means for anchoring the ends of the rod, and means for securing thecurved plate to the hood along the longitudinal edges of the plate.

5. A stacker hood comprising side members, a bar at the upper, rear endof the hood, having an apertured flange and a lip on said flange,fingers extended through the flange apertures, and having head portions7 extended across the line of discharge through the hood, a platelocated between the side members and spaced outwardly from the fingers,the inner end of the plate seating on said said lip and provided withapertures, studs on said lip projected through the apertures in the endof said plate, and means for anchoring the outer end of the plate tosaid side members.

In testimony whereof We aflix our signatures.

HALBERT G. WALLACE. JESSE I. WALLACE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents.

Washington, D. G.

